K2-31B, a Grazing Transiting Hot Jupiter on a 1.26-Day Orbit Around a Bright G7v Star
- Grziwa, S.
- Gandolfi, D.
- Csizmadia, S.
- Fridlund, Malcolm
- Parviainen, H.
- Deeg, H. J.
- Cabrera, J.
- Djupvik, A. A.
- Albrecht, S.
- Palle, E.
- Patzold, M.
- Bejar, V. J. S.
- Prieto-Arranz, J.
- Eigmuller, P.
- Erikson, A.
- Fynbo, J.P.U.
- Guenther, E. W.
- Hatzes, A.
- Kiilerich, A.
- Korth, J.
- Kuutma, T.
- Rodriguez, P. M.
- Nespral, D.
- Nowak, G.
- Rauer, H.
- Saario, J.
- Sebastian, D.
- Slumstrup, D.
DOIAbstract
We report the discovery of K2-31b, the first confirmed transiting hot Jupiter detected by the K2 space mission. We combined K2 photometry with FastCam lucky imaging and FIES and HARPS high-resolution spectroscopy to confirm the planetary nature of the transiting object and derived the system parameters. K2-31b is a 1.8-Jupiter-mass planet on a. 1.26-day orbit around a G7 V star (M-star = 0.91 M-circle dot, R-star = 0.78 R-circle dot). The planetary radius is poorly constrained (0.
Add to ORKG